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Re: [cgal-discuss] questions about surface mesh, ellipsoidal approximation, and licences


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  • From: Monique Teillaud <>
  • To:
  • Subject: Re: [cgal-discuss] questions about surface mesh, ellipsoidal approximation, and licences
  • Date: Mon, 23 Aug 2010 16:32:49 +0200

Michel Audette wrote:
Dear CGAL developers and users,

Sorry if this appeared before, but I just rejoined CGAL users, and
I did not see my message on the list, so this submission may have gone
through before my membership.

Dear Michel,

yes, your message had already appeared on the list.

You will know the license of each package more precisely if you look at the Overview (first entry in the menu on the left).

Best regards,
Monique Teillaud

I'd like to incorporate some CGAL functions into my research, but I
would like to find out more about licensing.

The website says that some classes are LGPL and some are QPL. I don't
plan on modifying the source code, but use it as is, like a black box.
Is the user given the choice for each, or are the licences set as one
or the other on a case-by-case basis?

Moreover, I'm interested in the 3D surface mesh, and would like to
find out more... Does it produce a mesh that is water-tight? Moroever,
it seems not to produce slivers (triangles with small edges), which
has important implications for finite elements. Is this shape quality
based on a parameter of the algorithm, and does this high quality come
at a price in terms of distance to the underlying boundary?

Finally, a former student of mine used ellipsoid approximation in the
past, I believe Approximate_min_ellipsoid_d .

I would be interested in the licences of both of these. Can I use the
code freely in both of these cases?

Best wishes,

Michel

--
Michel Audette, Ph.D.
R & D Engineer,
Kitware Inc.,
Chapel Hill, N.C.



--
Monique Teillaud
INRIA Sophia Antipolis - Méditerranée
http://www.inria.fr/sophia/members/Monique.Teillaud/



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